Righto-this is a Binary Tree. Meaning you can’t just add in whatever you want. The tree must be balanced out by having each Parent with two Children before going to a lower level. Hence the reshuffling. So Middle Letter is the Root (Laptop), before L is on the Left Leaf (Knitting Bag) and after L is the Right Leaf (Violin)

Again, knowledge you don’t really need for this comic. I just want to show off my programming skills